4 * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)
13 #ifndef _CRYPTO_INTERNAL_HASH_H
14 #define _CRYPTO_INTERNAL_HASH_H
16 #include <crypto/algapi.h>
17 #include <crypto/hash.h>
22 struct crypto_hash_walk
{
26 unsigned int alignmask
;
29 unsigned int entrylen
;
32 struct scatterlist
*sg
;
37 struct ahash_instance
{
41 struct shash_instance
{
45 struct crypto_ahash_spawn
{
46 struct crypto_spawn base
;
49 struct crypto_shash_spawn
{
50 struct crypto_spawn base
;
53 extern const struct crypto_type crypto_ahash_type
;
55 int crypto_hash_walk_done(struct crypto_hash_walk
*walk
, int err
);
56 int crypto_hash_walk_first(struct ahash_request
*req
,
57 struct crypto_hash_walk
*walk
);
58 int crypto_ahash_walk_first(struct ahash_request
*req
,
59 struct crypto_hash_walk
*walk
);
61 static inline int crypto_ahash_walk_done(struct crypto_hash_walk
*walk
,
64 return crypto_hash_walk_done(walk
, err
);
67 static inline int crypto_hash_walk_last(struct crypto_hash_walk
*walk
)
69 return !(walk
->entrylen
| walk
->total
);
72 static inline int crypto_ahash_walk_last(struct crypto_hash_walk
*walk
)
74 return crypto_hash_walk_last(walk
);
77 int crypto_register_ahash(struct ahash_alg
*alg
);
78 int crypto_unregister_ahash(struct ahash_alg
*alg
);
79 int crypto_register_ahashes(struct ahash_alg
*algs
, int count
);
80 void crypto_unregister_ahashes(struct ahash_alg
*algs
, int count
);
81 int ahash_register_instance(struct crypto_template
*tmpl
,
82 struct ahash_instance
*inst
);
83 void ahash_free_instance(struct crypto_instance
*inst
);
85 int shash_no_setkey(struct crypto_shash
*tfm
, const u8
*key
,
88 static inline bool crypto_shash_alg_has_setkey(struct shash_alg
*alg
)
90 return alg
->setkey
!= shash_no_setkey
;
93 bool crypto_hash_alg_has_setkey(struct hash_alg_common
*halg
);
95 int crypto_init_ahash_spawn(struct crypto_ahash_spawn
*spawn
,
96 struct hash_alg_common
*alg
,
97 struct crypto_instance
*inst
);
99 static inline void crypto_drop_ahash(struct crypto_ahash_spawn
*spawn
)
101 crypto_drop_spawn(&spawn
->base
);
104 struct hash_alg_common
*ahash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
106 int crypto_register_shash(struct shash_alg
*alg
);
107 int crypto_unregister_shash(struct shash_alg
*alg
);
108 int crypto_register_shashes(struct shash_alg
*algs
, int count
);
109 int crypto_unregister_shashes(struct shash_alg
*algs
, int count
);
110 int shash_register_instance(struct crypto_template
*tmpl
,
111 struct shash_instance
*inst
);
112 void shash_free_instance(struct crypto_instance
*inst
);
114 int crypto_init_shash_spawn(struct crypto_shash_spawn
*spawn
,
115 struct shash_alg
*alg
,
116 struct crypto_instance
*inst
);
118 static inline void crypto_drop_shash(struct crypto_shash_spawn
*spawn
)
120 crypto_drop_spawn(&spawn
->base
);
123 struct shash_alg
*shash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
125 int shash_ahash_update(struct ahash_request
*req
, struct shash_desc
*desc
);
126 int shash_ahash_finup(struct ahash_request
*req
, struct shash_desc
*desc
);
127 int shash_ahash_digest(struct ahash_request
*req
, struct shash_desc
*desc
);
129 int ahash_mcryptd_update(struct ahash_request
*desc
);
130 int ahash_mcryptd_final(struct ahash_request
*desc
);
131 int ahash_mcryptd_finup(struct ahash_request
*desc
);
132 int ahash_mcryptd_digest(struct ahash_request
*desc
);
134 int crypto_init_shash_ops_async(struct crypto_tfm
*tfm
);
136 static inline void *crypto_ahash_ctx(struct crypto_ahash
*tfm
)
138 return crypto_tfm_ctx(crypto_ahash_tfm(tfm
));
141 static inline struct ahash_alg
*__crypto_ahash_alg(struct crypto_alg
*alg
)
143 return container_of(__crypto_hash_alg_common(alg
), struct ahash_alg
,
147 static inline void crypto_ahash_set_reqsize(struct crypto_ahash
*tfm
,
148 unsigned int reqsize
)
150 tfm
->reqsize
= reqsize
;
153 static inline struct crypto_instance
*ahash_crypto_instance(
154 struct ahash_instance
*inst
)
156 return container_of(&inst
->alg
.halg
.base
, struct crypto_instance
, alg
);
159 static inline struct ahash_instance
*ahash_instance(
160 struct crypto_instance
*inst
)
162 return container_of(&inst
->alg
, struct ahash_instance
, alg
.halg
.base
);
165 static inline void *ahash_instance_ctx(struct ahash_instance
*inst
)
167 return crypto_instance_ctx(ahash_crypto_instance(inst
));
170 static inline unsigned int ahash_instance_headroom(void)
172 return sizeof(struct ahash_alg
) - sizeof(struct crypto_alg
);
175 static inline struct ahash_instance
*ahash_alloc_instance(
176 const char *name
, struct crypto_alg
*alg
)
178 return crypto_alloc_instance2(name
, alg
, ahash_instance_headroom());
181 static inline void ahash_request_complete(struct ahash_request
*req
, int err
)
183 req
->base
.complete(&req
->base
, err
);
186 static inline u32
ahash_request_flags(struct ahash_request
*req
)
188 return req
->base
.flags
;
191 static inline struct crypto_ahash
*crypto_spawn_ahash(
192 struct crypto_ahash_spawn
*spawn
)
194 return crypto_spawn_tfm2(&spawn
->base
);
197 static inline int ahash_enqueue_request(struct crypto_queue
*queue
,
198 struct ahash_request
*request
)
200 return crypto_enqueue_request(queue
, &request
->base
);
203 static inline struct ahash_request
*ahash_dequeue_request(
204 struct crypto_queue
*queue
)
206 return ahash_request_cast(crypto_dequeue_request(queue
));
209 static inline int ahash_tfm_in_queue(struct crypto_queue
*queue
,
210 struct crypto_ahash
*tfm
)
212 return crypto_tfm_in_queue(queue
, crypto_ahash_tfm(tfm
));
215 static inline void *crypto_shash_ctx(struct crypto_shash
*tfm
)
217 return crypto_tfm_ctx(&tfm
->base
);
220 static inline struct crypto_instance
*shash_crypto_instance(
221 struct shash_instance
*inst
)
223 return container_of(&inst
->alg
.base
, struct crypto_instance
, alg
);
226 static inline struct shash_instance
*shash_instance(
227 struct crypto_instance
*inst
)
229 return container_of(__crypto_shash_alg(&inst
->alg
),
230 struct shash_instance
, alg
);
233 static inline void *shash_instance_ctx(struct shash_instance
*inst
)
235 return crypto_instance_ctx(shash_crypto_instance(inst
));
238 static inline struct shash_instance
*shash_alloc_instance(
239 const char *name
, struct crypto_alg
*alg
)
241 return crypto_alloc_instance2(name
, alg
,
242 sizeof(struct shash_alg
) - sizeof(*alg
));
245 static inline struct crypto_shash
*crypto_spawn_shash(
246 struct crypto_shash_spawn
*spawn
)
248 return crypto_spawn_tfm2(&spawn
->base
);
251 static inline void *crypto_shash_ctx_aligned(struct crypto_shash
*tfm
)
253 return crypto_tfm_ctx_aligned(&tfm
->base
);
256 static inline struct crypto_shash
*__crypto_shash_cast(struct crypto_tfm
*tfm
)
258 return container_of(tfm
, struct crypto_shash
, base
);
261 #endif /* _CRYPTO_INTERNAL_HASH_H */